fn on_text_input()

in native/desktop-linux-sample/src/sample_linux.rs [492:519]

• 26 lines of code
• 10 McCabe index (conditional complexity)

fn on_text_input(event: &TextInputEvent, app_ptr: AppPtr<'_>, window_id: WindowId, window_state: &mut WindowState) {
    window_state.composed_text.clear();
    if event.has_delete_surrounding_text {
        let cursor_pos = window_state.text.len();
        let range = (cursor_pos - event.delete_surrounding_text.before_length_in_bytes as usize)
            ..(cursor_pos + event.delete_surrounding_text.after_length_in_bytes as usize);
        window_state.text.drain(range);
    }
    if event.has_commit_string
        && let Some(commit_string) = event.commit_string.as_optional_str().unwrap()
    {
        debug!("{window_id:?} commit_string: {commit_string}");
        window_state.text += commit_string;
    }
    if event.has_delete_surrounding_text || event.has_commit_string {
        update_text_input_context(app_ptr, &window_state.text, true);
    }

    if event.has_preedit_string {
        if event.preedit_string.cursor_begin_byte_pos == -1 && event.preedit_string.cursor_end_byte_pos == -1 {
            // TODO: hide cursor
        } else if let Some(preedit_string) = event.preedit_string.text.as_optional_str().unwrap() {
            window_state.composed_text.push_str(preedit_string);
        }
    }

    debug!("{window_id:?} : {} : {:?}", window_state.text.len(), window_state);
}